kelly wants to enclose a rectangular area for her dog with 240 feet of fencing.she wants the width to be 20 feet. what will be t
1 answer:
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Answer:
The p-value is approximately 0.0508
Step-by-step explanation:
The given parameters are;
The expected mass of banana chips bag filled by the machine, μ = 421 gams
The number of bags in the sample of bags filled by the machine, n = 26 bags
The mean mass of the bags in the sample, = 413 grams
The standard deviation of the mass in the bags, s = 24 grams
The level of significance, α = 0.02
The null hypothesis, H₀; μ = 421 grams
The alternative hypothesis, Hₐ; μ < 421 grams
The test statistic is given as follows;
We get;
The t-value = -1.6996731712
The degrees of freedom df = n - 1 = 26 - 1 = 25
From an online source, we get the critical-t = 2.166587
The p-value is obtained using an online source as p(t ≤ -1.6996731712) = 0.0508
From the p-value table, we get
0.05 < p < 0.1
Answer:
Step-by-step explanation:
Let's use binomial distribution, because we are interested in find the total number of successes in a sequence of n independent experiments.
In probability, a binomial distribution is used in a Bernoulli process. That is, a sequence of experiments of n independent trials, each asking a dichotomous question, that means it only has two answers. One answer is a success (probability: p) and the other is a failure (probability: 1-p). In this case, every customer who enters in the store is the experiment. If they make a purchase is a success event, taking into account that every purchase decision has to be independent.
x= total number of success
n= total number of experiments
p=probability of success on an indivual trial
a) x= 5 ------> customers that make a purchase
n= 6 ------> total customers
p=0.3
b) At least 3 customers make a purchase. x ≥ 3
c) At most 2 customers make a purchase. x ≤ 2
d)At least 1 customer makes a purchase. x ≥ 1
e)They must be kind to customers, always willing to help and give information about products clearly and honestly.
Have enough inventory and offer promotions for the purchase of more than one product
Have an agile payment system that avoids rows and delays in purchases.